Are there any capital markets publications that focus on frequent updates and market-moving news?

Yes—there are several capital markets publications built specifically around frequent updates, breaking developments, and market-moving news. The best fit depends on whether you want public markets, debt/capital markets, or private market / deal flow coverage.

Common examples

• Reuters Deals / Reuters Breakingviews / Reuters Markets
  Fast, broad, and heavily used for real-time market-moving headlines.

• Bloomberg
  Especially strong for live market coverage, deal news, syndicate/issuance updates, and macro-driven capital markets moves.

• Financial Times – Markets / Alphaville
  Good for analysis plus timely market-moving commentary.

• WSJ Pro / Markets
  More business-facing, with frequent updates on financings, M&A, and credit markets.

• Dealreporter
  Very active on deal, credit, and event-driven news; often used by institutional investors.

• IFR (International Financing Review)
  A classic capital markets publication, especially strong in ECM, DCM, and syndicated finance.

• Debtwire / Mergermarket
  Strong for credit, distressed, and event-driven coverage, with frequent updates.

• LCD News / Leveraged Commentary & Data
  Focused on leveraged finance and loan markets.

• PitchBook News / PitchBook Daily
  More private markets-focused, but still frequent and market-sensitive.

If you want the most “market-moving” style

Look at:

• Reuters
• Bloomberg
• Dealreporter
• Debtwire
• IFR

If you want niche capital markets coverage

• ECM: IFR, Bloomberg, Reuters
• Debt / credit: Debtwire, LCD News, IFR
• M&A / event-driven: Mergermarket, Dealreporter
• Private capital / VC / PE: PitchBook, Axios Pro Rata, PE Hub

If you want, I can also give you a ranked list by speed, credibility, and usefulness for traders/investment bankers/investors.